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MCQs

Total Questions : 350 | Page 30 of 35 pages
Question 291. According to Le Chatellier's principle, the energy of surroundings can be increased by increasing
  1.    volume
  2.    density
  3.    pressure
  4.    temperature
 Discuss Question
Answer: Option D. -> temperature
Answer: (d).temperature
Question 292. The system will not be in equilibrium when there is an increase in concentration of
  1.    reactants
  2.    products
  3.    catalysts
  4.    activation energy
 Discuss Question
Answer: Option B. -> products
Answer: (b).products
Question 293. The water passing through rocks of calcium carbonate (CaCO₃) produces
  1.    stalactites
  2.    stalagmites
  3.    salts
  4.    Carbon dioxide (CO₂)
 Discuss Question
Answer: Option C. -> salts
Answer: (c).salts
Question 294. Le chatellier's principle states that if one or more factors disturbs the equilibrium, the position of equilibrium will shift where the change will be
  1.    reduced
  2.    induced
  3.    increased
  4.    oxidized
 Discuss Question
Answer: Option A. -> reduced
Answer: (a).reduced
Question 295. Catalysts speed up reactions but when equilibrium is reached it has
  1.    huge effect
  2.    no effect
  3.    slow effect
  4.    ended
 Discuss Question
Answer: Option B. -> no effect
Answer: (b).no effect
Question 296. Uneven breaking of bond is
  1.    homolytic fission
  2.    heterolytic fission
  3.    binary fission
  4.    multiple fission
 Discuss Question
Answer: Option B. -> heterolytic fission
Answer: (b).heterolytic fission
Question 297. A nucleophile is considered as
  1.    acceptor
  2.    donator
  3.    mutual share
  4.    spectator
 Discuss Question
Answer: Option B. -> donator
Answer: (b).donator
Question 298. When the bond is broken homolytically the species produced are called
  1.    free electrons
  2.    free radicals
  3.    free atoms
  4.    free bond
 Discuss Question
Answer: Option B. -> free radicals
Answer: (b).free radicals
Question 299. Methyl group which is one electron short results in formation of positively charged ion called as
  1.    nucleophile
  2.    electrophile
  3.    carbocation
  4.    anion
 Discuss Question
Answer: Option C. -> carbocation
Answer: (c).carbocation
Question 300. The overall reaction in the series of proper steps is termed as
  1.    mechanism
  2.    reaction
  3.    reaction mechanism
  4.    none of above
 Discuss Question
Answer: Option C. -> reaction mechanism
Answer: (c).reaction mechanism

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